1. Add an ad to the ContactListActivity in the Android version of MyContactList. Be sure to set the test device ID if you want to test it. Try this in the iOS version as well.
2. Write a brief business plan for MyContactList. How would you monetize the app? Who is the market?
3. What kind of app do you want to make? Who is the target audience? How will you monetize it? Why would somebody want your app? How difficult would it be to make?